Multiple Choice
Which statement about the binding of oxygen by hemoglobin is true?
A) The percentage of completely O2-saturated hemoglobin decreases as PO2 increases.
B) The O2-binding/dissociation curve is U-shaped.
C) Over the full length of the O2-binding/dissociation curve, O2 dissociation-association is rapid.
D) A very low PO2 is required for all four hemoglobin subunits to bind to O2.
E) Once one subunit of hemoglobin binds to O2, the affinity of the remaining subunits for their O2 increases until three O2 are bound.
Correct Answer:
Verified
Correct Answer:
Verified
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